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煤矿坑道工作环境恶劣,安全隐患众多。事故发生时,为及时确定工作人员的位置信息,保证人员的生命财产安全,采用无线传感网络技术,分析比较现有成熟的定位方法,针对坑道复杂的环境,以RSSI测距的多元回归模型为基础,利用信标节点的距离差分信息,对信标节点确定的目标节点距离信息修正,并结合三边定位算法,提出一种煤矿区域差分定位算法。实验证明该算法无需较多的信标节点就能保证很高的定位精度,以该算法为核心的定位系统能够适用于坑道环境。
Coal mine tunnel work environment is poor, many security risks. At the time of the accident, in order to determine the location information of the staff in time and ensure the life and property safety of the staff, the wireless sensor network technology was adopted to analyze and compare the existing well-established positioning methods. According to the complicated environment of the tunnel and the multiple regression model Based on the difference information of the beacon node, the information of the target node determined by the beacon node is corrected. Combined with the three-edge localization algorithm, a new algorithm for regional differential location of coal mine is proposed. Experiments show that the algorithm can ensure high positioning accuracy without more beacon nodes. The positioning system with the algorithm as the core can be applied to tunnel environment.